Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between HIMAWARI-9 and NOAA-21 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/17/2025
Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
1 | 05/18/2025 | 04:16:32 | -0.00, 140.77 | -0.84, 136.93 | 437.87 | 80 |
2 | 05/19/2025 | 04:00:28 | -0.01, 140.77 | 0.12, 141.46 | 78.74 | 80 |
3 | 05/21/2025 | 16:00:54 | 0.01, 140.75 | 0.05, 140.71 | 5.43 | 80 |
4 | 05/24/2025 | 04:04:08 | -0.01, 140.73 | -0.21, 139.93 | 91.44 | 80 |
5 | 05/25/2025 | 03:48:04 | -0.01, 140.72 | 0.82, 144.45 | 425.81 | 80 |
6 | 05/26/2025 | 16:09:54 | -0.00, 140.69 | 0.31, 139.17 | 173.20 | 80 |
7 | 05/27/2025 | 15:48:30 | -0.00, 140.68 | -0.66, 143.70 | 344.09 | 80 |
8 | 05/29/2025 | 04:10:27 | 0.01, 140.67 | -0.52, 138.39 | 259.63 | 80 |
9 | 05/30/2025 | 03:54:24 | 0.00, 140.65 | 0.51, 142.92 | 258.35 | 80 |
10 | 05/31/2025 | 16:13:33 | -0.00, 140.61 | 0.66, 137.64 | 338.79 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/17/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 05/17/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21